From: Avi Kivity <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
diff --git a/kernel/external-module-compat.h b/kernel/external-module-compat.h
index 5c1485d..5fc2479 100644
--- a/kernel/external-module-compat.h
+++ b/kernel/external-module-compat.h
@@ -741,3 +741,29 @@ static inline ktime_t ktime_get(void)
#ifndef MSR_GS_BASE
#define MSR_GS_BASE 0xc0000101
#endif
+
+#include <linux/mm.h>
+
+/* The shrinker API changed in 2.6.23 */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)
+
+struct kvm_shrinker {
+ int (*shrink)(int nr_to_scan, gfp_t gfp_mask);
+ int seeks;
+ struct shrinker *kshrinker;
+};
+
+static inline void register_shrinker(struct kvm_shrinker *shrinker)
+{
+ shrinker->kshrinker = set_shrinker(shrinker->seeks, shrinker->shrink);
+}
+
+static inline void unregister_shrinker(struct kvm_shrinker *shrinker)
+{
+ if (shrinker->kshrinker)
+ remove_shrinker(shrinker->kshrinker);
+}
+
+#define shrinker kvm_shrinker
+
+#endif
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